14 incredible before and after photos show how popular London landmarks have changed over the past 100 years

Whether you live in the capital or visit from time to time, chances are you're often overwhelmed by the number of people in London, as well as the architecture, both old and modern — but the city hasn't always looked like this.

Expedia UK's "Historic London" project allows you to take a virtual Google Street View tour of 14 popular London locations with overlaid images showing how the same spots looked up to 100 years ago.

While the tour shows how architecture has changed over the past decades, it also reveals which views have stayed quite similar and kept their historic beauty intact.

From Clapham Common to Harrods and Covent Garden, scroll down for screenshots that show the before-and-after effects of some of London's most popular landmarks.